Fam. Polypodiaceae s.l.

Asplenium sp.

N.Vietnam, Bac Kan Prov., Cho Don Distr., Ban Thi Municipality, village Phia Khao, around point 22º15'35''N, 105º31'17''E at elevation 800-900 m a.s.l. Remnants of primary broad-leaved evergreen closed wet forest on very steep slopes and cliffs of rocky ridges and mesae composed with solid marble-like stratified limestone. Lithophyte on vertical cliff. Common.

No HAL 4639 19 May 2004

Collectors: L.Averyanov, N.T.Hiep, P.V.The, N.T.Vinh.